Silicon Labs has launched two new security-focused Bluetooth 5.2 system-on-chip (SoC) modules, an ultra-compact system-in-package (SIP) variant and a larger PCB-based model — complete with a starter kit to aid with system development.
Brought to our attention by CNX Software, the new Silicon Labs BGM220S and BGM220P — SIP and PCB respectively — feature an Arm Cortex-M33 processing core, up to 32kB of RAM, up to 512kB of flash memory, and a 2.4GHz radio transceiver offering up to 8dBm output power with Bluetooth 5.2, Bluetooth Low Energy, Bluetooth Mesh on selected models, and direction-finding capabilities.
Designed for ultra-low-power use, Silicon Labs has measured the parts at drawing 4.3ma receive and 4.8mA transmit, 26μA/MHz in active mode, and just 1.4μA in "Deep Sleep" mode — a mode which keeps the real-time clock (RTC) running and retains full RAM contents. Each includes up to 25 general-purpose input/output (GPIO) pins, an analog-to-digital converter, PWM, I2C, DMS, and PDM for a microphone input.
The key difference between both parts: The SIP variant measures a mere 6x6x1.1mm (around 0.24x0.24x0.04in), while the PCB-based version is designed to be easier to work with but ups the size to 12.9x15x2.2mm (around 0.51x0.59x0.09in). All arrive ready-certified to the usual international regulations.
For developers, Silicon Labs has also launched the BGM220 Bluetooth Module Wireless Starter Kit, a development board designed to ease experimentation with the new modules.
Full details can be found on the Silicon Labs website.